SMS Fallback:
Guaranteed Delivery for Critical WhatsApp Messages

In today's fast-paced digital world, communication is everything. Telkosh's SMS Fallback service which uses WhatsApp Business API, makes sure that your most important messages, like delivery updates and OTPs, are always delivered, even if WhatsApp does not deliver successfully. No more gaps in communications. No more missed opportunities. Just trusted messaging every time.

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What Is SMS Fallback?

SMS fallback is a feature that automatically sends messages via SMS if your primary WhatsApp channel doesn't correctly deliver the message. SMS fallback ensures that users always receive messages by providing a fallback channel when a user does not have access to WhatsApp, loses or does not have data, or when a message is blocked altogether. Most omnichannel API providers typically implement SMS fallbacks when a fallback channel (like SMS) and the user's phone number have been configured.

Shop opera

Hi Daniel, your package will be delivered at 5PM today.

SMS . Shop

5 min ago

Hi Daniel, your package will be delivered at 5PM today.

SMS Fallback & Delivered

How SMS Fallback Works

Ensure your message always reaches the customer â€” even when internet-based channels fail.

Primary Message Sent:

Your message is first delivered through the main channel â€” such as WhatsApp, RCS, or a push notification.

Automatic Detection:

If the message isnâ€™t delivered within a certain time (because of no internet, poor network, or the app being uninstalled), the fallback system activates automatically.

Seamless Switch to SMS:

The message is then instantly re-sent as a regular SMS using the customer's mobile number â€” ensuring it reaches them even without an internet connection.

Features That Make SMS Fallback

Seamless and Cost-Effective

Enhanced message delivery

Ensures the message gets delivered, in particular for important information...

Multi-channel support

Can be set up for multiple messaging channels like SMS, WhatsApp, email, and push notification, not only as a primary channel, but optionally as a failover channel.

Configurable fallback sequences

The business can specify what order to fall back on when the customer ...

Cost optimization

Connects a lower cost messaging channel and only switches to ....

Deliver Assurance with Every Message

Telkoshâ€™s SMS Fallback bridges the gap between online and offline communication. Itâ€™s not just about sending messages â€” itâ€™s about ensuring reliability, customer satisfaction, and brand credibility across all conditions, seamlessly working alongside Multi-Agent Support to maintain consistent and efficient communication at every customer touchpoint.

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FAQs â€“ SMS Fallback

SMS Fallback is critical for time-sensitive messages like OTPs (One-Time Passwords), booking confirmations, urgent order updates, and two-factor authentication codes. Any message where delivery is non-negotiable should have an SMS fallback configured.

No complex separate setup is required. Once you have your WhatsApp Business API and SMS service configured on the Telkosh platform, you simply enable the fallback option in your campaign settings or API call, and our system handles the routing automatically.

WhatsApp accounts are inherently linked to mobile numbers. If a message fails on WhatsApp, our system identifies the associated mobile number and instantly routes the message through our global SMS gateway to ensure delivery.